Deploying a Hydrogen app to Vercel

[selvinkuik]

I am developing a Hydrogen (1.6.1) site. I have the mailgun.js (8.0.2) package and I am able to successfully send messages on my local dev environment. However, when I deploy to Vercel, I'm getting the message...

[FAILED] 'default' is not exported by node_modules/mailgun.js/mailgun.web.js, imported by src/routes/api/mailgun.server.ts
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08:45:17.971 | ╭─ error ──────────────────────────────────────────────────────────────────────╮
08:45:17.971 | │                                                                              │
08:45:17.971 | │  'default' is not exported by node_modules/mailgun.js/mailgun.web.js,        │
08:45:17.971 | │  imported by src/routes/api/mailgun.server.ts                                │
08:45:17.972 | │                                                                              │
08:45:17.972 | ╰──────────────────────────────────────────────────────────────────────────────╯